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Preferred partner and specialist in compensating systems
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Comprehensive range of services to the offshore industry
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Upgrade solutions for existing compensation systems

Maritime Drilling Systems

Upgrade, servicing and competitive supplier of spare parts to the offshore drilling industry

We are an innovative engineering firm specialising in heave compensation and drilling equipment systems for the offshore oil industry. Our industry leading engineering team have built a reputation as a trusted and preferred business partner with our long term customers.

We provide servicing, upgrade, repair and life-extension solutions for drilling equipment. Our training department offers courses and seminars specialising in the area of compensating systems and we have a highly experienced pool of engineering personnel available for short or long-term deployment.

We are a forward looking company with a focus on providing technically superior and cost effective Lean Solutions for our customers. Our combination of experience and innovation provides our customers with the best possible foundation for efficient and effective growth.

Our personnel have over 20 years first-hand experience in the offshore oil drilling industry.

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Upgrade solutions for existing compensation systems

Maritime Drilling Systems are able to provide a range of upgrade and replacement options for existing compensating systems. Our solutions are reliable, fully tested and cost effective, providing the benefits of modern systems for a fraction of the price and with short installation times.

Contact us today to discuss your needs.

  • Isolation valves (overhaul and new)

  • Anti-recoil valves

  • AHC valve blocks

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Tension Cylinder
Overhaul

Our facility is equipped to perform overhaul of large cylinders (MRT, GLT, PLT etc.) We can deliver Chrome, HVF and laser welded Incornel® 625 coatings and our unique state-of-the-art honing bench is specially developed for honing cylinder housings and accumulators. We also have competent personnel available for disassembly and assembly offshore.

  • Welded overlay on rod using modified Inconel® 625 nickel-chromium alloy etc

  • Thermal spray coatings

  • Specialist in low friction seal packing boxes

  • Honing and refurbishing of accumulator shell
  • Function and pressure testing
  • Painting
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Servicing, Support
and Repair

Our team of fully qualified and experienced engineers are ready to provide first class servicing, support and repair of compensation and drilling systems both onshore and offshore.
  • 24/7- technical support

  • Fully qualified and experienced team always available

  • Certified to the latest standards

  • 20 years experience

  • Mechanical, hydraulic, electrical and software engineering

  • Control systems - design, building and commisioning of on and offshore installations

Comprehensive Range of Services

Maritime Drilling Systems provide a comprehensive range of services to the offshore drilling industry. We strive to provide the best possible solutions for our customers in everything we do. Read more about some of the services we offer here.
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On-site Repair
Specialist

Maritime Drilling Systems specialise in on-site main shaft repair of drilling machines. Our experienced engineers can provide the support needed to get your systems back in operation as quickly and smoothly as possible.

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Preservation Solutions for Drilling Equipment

We provide long term preservation solutions which ensure your drilling equipment stays fit for purpose during lay-up and make sure there is a low cost in getting the equipment up and running again when it goes back in to service.

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Re-classification
Services

We have dedicated personnel for planning and preparation for 5-yearly re-classification. From stand alone to entire rig, we support the SPS planning process and can follow up in all phases of the project (in association with NATG).

Contact us today to discuss your needs
Bring innovation
to your offshore operations
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Crane
Services

Offshore crane repair services. Repair of hydraulic motors, pumps, load blocks, headache balls etc. Winch repairs and reconditioning (Braden & Ingersoll Rand and EBI). Winch certification.

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Spare Parts
Sales

We are able to provide quality replacement parts as required and at competitive prices. We provide expert advice to help you find the most cost effective solution.

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Seminars and
Training

Our training department offers courses and seminars from leading experts specialising in the area of compensating systems and tailored to meet your company's needs.

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Service

Our service department are ready to serve both new and existing clients. We have service personnel for all types of drilling equipment and motion compensators. With more than 20 years of experience, our personnel are highly trained within the fields of mechanical, hydraulic, electrical and software engineering. Our service engineers and electricians are fully certified.

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Control Systems

We have over 20 years experience with drilling control systems, supporting and producing automation, machine control and electrical systems. Our expertise includes HMI systems, radio controllers, operator chairs and full PLC control system packages. We provide electro installation on/offshore including design, building and commissioning.

Personnel Deployment

Our personnel department have a pool of highly qualified and experienced engineers available for short or long term contract (SPS/Yardstay). We are able to provide experts in electrical systems and software as well as hydraulic and mechanical systems.

Contact us today to discuss your requirements.

Contact us

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Maritime Drilling Systems

HEAD OFFICE
Skibåsen 42e
N-4636 Kristiansand S
Norway

+47 990 99 222
post@mds.as

Registered company in Norway:
NO 916 040 199 MVA

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    Our Team

    Arild Birkenes

    General Manager
    +47 468 55 618
    arild.birkenes@mds.as

    Håkon Birkenes

    Technical Director
    +47 90176392
    hakon.birkenes@mds.as

    Per-Stian Kristoffersen

    Supply Chain and Project Coordinator
    +47 465 29 240
    per-stian.kristoffersen@mds.as

    Erik Mjaasund

    Supply Chain Manager
    +47 97010548
    erik.mjaasund@mds.as

    Thomas Shaun Solli

    Supply Chain Consultant
    +47 46502775
    thomas.solli@mds.as

    Our Clients

    ADES is a Saudi-based international drilling services company specializing in offshore and onshore operations across the Middle East and North Africa. With a focus on safety, operational excellence, and cost efficiency, ADES provides tailored drilling solutions through its extensive fleet of jack-up and land rigs, serving major oil and gas operators in the region.
    Ades Group
    Website link
    Well-Safe Solutions is a UK-based specialist in well decommissioning, offering fully integrated plug and abandonment services using its own dedicated fleet of repurposed rigs. The company focuses on safe, efficient, and environmentally responsible solutions while also supporting emerging energy transition initiatives like geothermal and carbon capture.
    Well-Safe Solutions
    Website link
    TP-OTC (Turkish Petroleum Offshore Technology Center) is a subsidiary of Turkish Petroleum Corporation (TPAO), established to provide engineering and technology services for offshore oil and gas operations. The company focuses on enhancing operational safety and efficiency through its highly qualified workforce, aiming to conduct successful and uninterrupted drilling activities in Turkey’s maritime zones and beyond.
    Turkish Petroleum Offshore Technology Center
    Website link
    Foresea is a Brazilian offshore drilling company specializing in deep and ultra-deepwater operations, offering intelligent drilling solutions with a fleet of advanced rigs. The company emphasizes innovation, safety, and sustainability, operating primarily in Brazil’s offshore oil and gas sector.
    Foresea
    Website link
    Transocean Ltd. is a leading offshore drilling contractor specializing in ultra-deepwater and harsh-environment drilling services. Headquartered in Vernier, Switzerland, the company operates a versatile fleet of mobile offshore drilling units, including ultra-deepwater floaters and harsh-environment floaters.
    Transocean
    Website link

    Our Partners

    • Logi Trans - With decades of experience and offices across Scandinavia and Europe, Logi Trans Group delivers reliable, flexible logistics solutions by road, sea, and air. Their strong focus on compliance, safety, and customer service makes them a valuable partner for handling complex transport needs, both locally and globally.
    • Oilgear - Oilgear is a global manufacturer of high-performance hydraulic systems and components, known for durable, custom-engineered solutions. The company serves demanding industries like oil and gas, defense, and manufacturing with a focus on innovation and precision.
    • Risør Engineering - Risør Engineering AS is a Norwegian company providing highly qualified personnel and services for offshore, marine, and land-based industrial projects. They offer expertise in mechanical disciplines, hydraulics, and electrical/automation systems, along with vessel service and lay-up operations at their deepwater quays in Risør and Brevik.
    • Danfoss Power Solutions - Danfoss is a Danish multinational engineering company founded in 1933, specializing in energy-efficient technologies that enhance machine productivity, reduce emissions, and enable electrification. Operating globally, Danfoss serves diverse sectors including heating and cooling, mobile hydraulics, and power electronics, with a strong commitment to sustainability and innovation.
    • Van Halteren Technoligies - Van Halteren Technologies is a Dutch engineering company specializing in advanced drive and control systems, simulation technologies, and visual recognition solutions for the marine, offshore, defense, and energy sectors. With decades of experience, the company delivers customized, high-quality systems designed for demanding environments, emphasizing innovation, reliability, and long-term performance.